Ban teasers splashing a lot of cold water (7,3)

I believe the answer is:

barents sea

I'm a little stuck... Click here to teach me more about this clue!

'cold water' is the definition.
(I've seen this before)

'ban teasers splashing a lot' is the wordplay.
'ban teasers' can be anagrammed to 'BARENTS SEA'.
Though, I am not clear how this is indicated.

'of' acts as a link.

Can you help me to learn more?

(Other definitions for barents sea that I've seen before include "part of Arctic Ocean" , "cold water" .)

I've seen this clue in The Times.

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